Effects of Oxygen Vacancy on Ferroelectric Hysteresis under External Electric and Stress Fields

Srinoi, S.; Yimnirun, Rattikorn; Laosiritaworn, Yongyut

doi:10.1080/00150193.2014.922796

Cited by 4 publications

(2 citation statements)

References 18 publications

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“…Besides good polarization and remarkable conductivity, the optical properties (i.e. 43 As the driving voltage further increases to 50 V, the modulated laser intensity significantly increases. Fig.…”

Section: Resultsmentioning

confidence: 99%

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A wafer-scale graphene and ferroelectric multilayer for flexible and fast-switched modulation applications

Zhu

et al. 2015

Nanoscale

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Here we report a wafer-scale graphene/P(VDF-TrFE)/graphene multilayer for light-weight, flexible and fast-switched broadband modulation applications. The P(VDF-TrFE) film not only significantly reduces the sheet resistance of graphene throughout heavy doping of ∼0.8 × 10(13) cm(-2) by nonvolatile ferroelectric dipoles, but also acts as an efficient electro-optic (EO) layer. Such multilayered structural integration with remarkable ferroelectric polarization, high transparency (>90%), low sheet resistance (∼302 Ω□(-1)), and excellent mechanic flexibility shows the potential of a flexible modulation application over a broad range of wavelengths. Moreover, the derived device also exhibits strong field-induced EO modulation even under bending and one large Pockels coefficient (∼54.3 pm V(-1)) is obtained. Finally, the graphene and ferroelectric hybrid demonstrates a fast switching time (∼2 μs) and works well below low sheet resistance level over a long time. This work gives insights into the potential of graphene and ferroelectric hybrid structures, enabling future exploration on next-generation high-performance, flexible transparent electronics and photonics.

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Section: Resultsmentioning

confidence: 99%

“…The small increase may arise from the effect of oxygen vacancy in the ferroelectric material under the external stress field. 43 As the driving voltage further increases to 50 V, the modulated laser intensity significantly increases. The increased intensities are very close to each other for the device in both flat and bending states (Fig.…”

Section: Resultsmentioning

confidence: 99%